Key points of the deal

A Northern Ireland assembly will have 108 members, elected by proportional representation. It will be run by an executive committee of 12 members.

The assembly will have powers to legislate, but its first responsibility is to set up a North-South Ministerial Council on issues including cross- border co-operation.

The Irish government will amend its constitution, which lays claim to the territory of Northern Ireland. In return, London will replace the Government of Ireland Act.

A further proposal for a Council of the Isles, with members drawn from north and south as well as from the Scottish and Welsh assemblies.

Agreement to be put to the peoples of Northern Ireland and the Republic in referenda on 22 May.